GMC Sierra All-Terrain HD Concept Rumored for Production

At this year’s North American International Auto Show, General Motors teased truck lovers by unveiling the All-Terrain HD Concept, an off-road, pre-runner inspired vehicle in the SVT Raptor idom and derived from the current GMC Sierra HD.

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Detroit 2011: GMC Sierra All Terrain HD Concept Eats Raptors for Lunch

Compared to the Ford Raptor, the GMC Sierra All Terrain HD Concept is a T-Rex. Based on GM’s new Heavy Duty platform, this truck is in a whole other segment than the Raptor and was never meant to be a Baja machine.

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GMC Sierra All Terrain HD Concept: New Pictures Released Ahead of Detroit Debut

With a planned debut at the Detroit Auto Show next week, GMC has released a new selection of photos of its overtly excessive Sierra All Terrain HD Concept. We first brought you coverage of this new truck several weeks back, but the new gallery of pics provides more angles and shows the big off-roader’s interior.

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GMC Sierra All Terrain HD Concept Revealed Ahead of Detroit Auto Show